Have one user that just started getting disconnected from the internet once or twice a day. While disconnected the computer can access the server along with pinging it but can't ping the gateway. No one else is having the disconnect.
I have changed the network cable on the pc side and the switch side and also changed the port that the computer plugs into.
I have ipconfig /release, /flushdns, /registerdns
There is no event log from the time period that this happens.
My only other option to test is to install a new NIC card and see if it happens on that.